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  • Party Boat (7-2) takes the Memories of Silver on the Aqueduct turf.Posted 2 days ago
  • Dolphus (6-5), Rachel Alexandra's half-brother, wins AQU allowance; Shagaf lastPosted 2 days ago
  • Multiplier (4-1) kicks it in late to get past Hedge Fund in the Illinois Derby.Posted 2 days ago
  • Collected (3-5) rolls home much the best in the Californian.Posted 2 days ago
  • Imperative (5-1) surges past Matt King Coal for his second win in the Charles Town Classic.Posted 3 days ago
  • Itsinthepost (5-2) proves best in Keeneland's Elkhorn.Posted 3 days ago
  • Inordinate (5-2) surges to victory in the San Juan Capistrano.Posted 3 days ago
  • Twisted Tom (5-1) is a game winner of a sloppy Federico Tesio Stakes.Posted 3 days ago
  • Classic Rock (6-5) rolls in the Roar, the Preakness could be next.Posted 4 days ago
  • Unbridled Mo (2-5) holds on to win the Doubledogdare at Keeneland.Posted 4 days ago
Breeders Cup 2015
Kentucky Derby 2017


HRN Original Blog:
ThoroughMetrics's Blog
Posted Tuesday, October 11, 2016
Some research into stallions who sire durable (and reasonably fast) offspring. There aren't a lot of them, but it's an interesting list.
Posted Thursday, October 06, 2016
Statistical analysis of the soundness and durability of Unbridled's Song's offspring led to some findings that surprised me.
Posted Thursday, June 06, 2013
I compare the upcoming 'revolution' in statistical analysis to baseball's 'Moneyball' movement, and do some 'back of napkin' estimates of the dollar value of improved insight into which pedigree factors can predict racing success.
Posted Saturday, June 01, 2013
I took a look at the two year old offspring of top sires in 2001 and 2002 to see what kind of correlations in performance existed betwen the two crops. Due to a lack of detailed data, the results were inconclusive, but still somewhat interesting.
Posted Saturday, May 25, 2013
An introduction to the new ThoroughMetrics blog. And I revisit an old question about Storm Cat as a sire of sires...and once again fail to come up with answer.


Meet Alex Zelvin

Alex is a lifelong horse racing fan and statistics nerd. He combines those interests in a passion for statistical analysis of thoroughbred pedigrees. 

Alex is currently building a model to predict the on-track success of any real or hypothetical mating. If you're interested in keeping up with his progress in-between articles here, he'll be posting frequent informal updates at his blog (thoroughmetrics.blogspot.com), where you can also sign up for his email update list. 

He can also be reached at zelvin30@hotmail.com if you're interested in consulting with him or just discussing pedigree analysis. 

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